refcnt.h

#ifndef foopulserefcnthfoo#define foopulserefcnthfoo/*** This file is part of PulseAudio. Copyright 2006 Lennart Poettering PulseAudio is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation; either version 2.1 of the License, or (at your option) any later version. PulseAudio is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU Lesser General Public License along with PulseAudio; if not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.***/#include <pulsecore/atomic.h>#include <pulsecore/macro.h>#include <pulsecore/log.h>/* #define DEBUG_REF */#define PA_REFCNT_DECLARE \ pa_atomic_t _ref#define PA_REFCNT_VALUE(p) \ pa_atomic_load(&(p)->_ref)#define PA_REFCNT_INIT_ZERO(p) \ pa_atomic_store(&(p)->_ref, 0)#ifndef DEBUG_REF#define PA_REFCNT_INIT(p) \ pa_atomic_store(&(p)->_ref, 1)#define PA_REFCNT_INC(p) \ pa_atomic_inc(&(p)->_ref)#define PA_REFCNT_DEC(p) \ (pa_atomic_dec(&(p)->_ref)-1)#else/* If you need to debug ref counting problems define DEBUG_REF and * set $PULSE_LOG_BACKTRACE=5 or suchlike in the shell when running * PA */#define PA_REFCNT_INIT(p) \ do { \ pa_atomic_store(&(p)->_ref, 1); \ pa_log("REF: Init %p", p); \ } while (FALSE)#define PA_REFCNT_INC(p) \ do { \ pa_atomic_inc(&(p)->_ref); \ pa_log("REF: Inc %p", p); \ } while (FALSE) \#define PA_REFCNT_DEC(p) \ ({ \ int _j = (pa_atomic_dec(&(p)->_ref)-1); \ if (_j <= 0) \ pa_log("REF: Done %p", p); \ else \ pa_log("REF: Dec %p", p); \ _j; \ })#endif#endif